Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Practice Creating and Using Functions in Python Practice Functions Use an External Function

Piotr Manczak
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Piotr Manczak
Front End Web Development Techdegree Graduate 28,940 Points

CommunicationError

What am I doing wrong?

using_a_function.py
"""
This is importing a function named `tweet` from a file
    that we unfortunately don't have access to change.

You use it like so:
>>> tweet("Hello this is my tweet")

If the function cannot connect to Twitter,
    the function will raise a `CommunicationError`
If the message is too long,
    the function will raise a `MessageTooLongError`
"""
from twitter import (
    tweet,
    MessageTooLongError,
    CommunicationError,
)


message = input("What would you like to tweet?  ")
# Your code here
try:
    tweet(message)
except CommunicationError:
    print('An error occurred attempting to connect to Twitter. Please try again!')

2 Answers

Steven Parker
Steven Parker
229,005 Points

I'm not seeing anything "wrong" here. This code passes tasks 1 and 2 as it is. And the code for task 3 just has not been added yet.

Daniel Mula Taranc贸n
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Daniel Mula Taranc贸n
Data Analysis Techdegree Graduate 35,367 Points

Hi Piotr Manczak,

I think that you do not need to handle any error here using try and except... You just need to use the functions you are importing. For instance:

from twitter import (
    tweet,
    MessageTooLongError,
    CommunicationError,
)


message = input("What would you like to tweet?  ")

if #whatever condition that makes the message too long:
    MessageTooLongError(message)
elif #whatever condition that produces a communication error:
    CommunicationError(message)
else:
    tweet(message)

I hope this helps, anyway you can ask me again.

Cheers